mirror of https://github.com/sm64pc/sm64pc.git
89 lines
2.8 KiB
C
89 lines
2.8 KiB
C
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/**
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* Behavior for bhvTTC2DRotator.
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* This includes the hand (in TTC, not the clock in the castle), as well as the
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* purely visual 2D cogs in TTC.
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*/
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/**
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* Speeds for the hand and the 2D cog, respectively. Negative because clockwise.
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*/
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static s16 sTTC2DRotatorSpeeds[] = {
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-0x444,
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-0xCCC,
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};
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/**
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* The time between each increment to target yaw. On random setting, this is
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* only used for the first turn, after which it is chosen randomly.
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* These values are for the hand and the 2D cog, respectively.
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*/
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static s16 sTTC2DRotatorTimeBetweenTurns[][4] = {
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{
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/* TTC_SPEED_SLOW */ 40,
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/* TTC_SPEED_FAST */ 10,
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/* TTC_SPEED_RANDOM */ 10,
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/* TTC_SPEED_STOPPED */ 0,
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},
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{
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/* TTC_SPEED_SLOW */ 20,
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/* TTC_SPEED_FAST */ 5,
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/* TTC_SPEED_RANDOM */ 5,
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/* TTC_SPEED_STOPPED */ 0,
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},
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};
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/**
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* Init function for bhvTTC2DRotator.
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*/
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void bhv_ttc_2d_rotator_init(void) {
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o->oTTC2DRotatorMinTimeUntilNextTurn =
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sTTC2DRotatorTimeBetweenTurns[o->oBehParams2ndByte][gTTCSpeedSetting];
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o->oTTC2DRotatorIncrement = o->oTTC2DRotatorSpeed = sTTC2DRotatorSpeeds[o->oBehParams2ndByte];
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}
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/**
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* Update function for bhvTTC2DRotator.
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* Rotate to target yaw, and make sure we've waited long enough since the last
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* turn, then increment the target yaw and possibly change direction.
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*/
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void bhv_ttc_2d_rotator_update(void) {
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s32 startYaw = o->oFaceAngleYaw;
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if (o->oTTC2DRotatorRandomDirTimer != 0) {
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o->oTTC2DRotatorRandomDirTimer -= 1;
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}
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// Wait until rotated to target yaw
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if (o->oTTC2DRotatorMinTimeUntilNextTurn != 0
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&& obj_face_yaw_approach(o->oTTC2DRotatorTargetYaw, 0xC8)) {
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// and until MinTimeUntilNextTurn has passed.
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if (o->oTimer > o->oTTC2DRotatorMinTimeUntilNextTurn) {
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// Increment target yaw
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o->oTTC2DRotatorTargetYaw += o->oTTC2DRotatorIncrement;
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o->oTimer = 0;
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if (gTTCSpeedSetting == TTC_SPEED_RANDOM) {
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// If ready for a change in direction, then pick a new
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// direction
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if (o->oTTC2DRotatorRandomDirTimer == 0) {
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if (RandomU16() & 0x3) {
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o->oTTC2DRotatorIncrement = o->oTTC2DRotatorSpeed;
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o->oTTC2DRotatorRandomDirTimer = random_mod_offset(90, 60, 4);
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} else {
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o->oTTC2DRotatorIncrement = -o->oTTC2DRotatorSpeed;
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o->oTTC2DRotatorRandomDirTimer = random_mod_offset(30, 30, 3);
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}
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}
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o->oTTC2DRotatorMinTimeUntilNextTurn = random_mod_offset(10, 20, 3);
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}
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}
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}
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o->oAngleVelYaw = o->oFaceAngleYaw - startYaw;
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if (o->oBehParams2ndByte == TTC_2D_ROTATOR_BP_HAND) {
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load_object_collision_model();
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}
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}
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